Help please and don't just comment for free points thank you.

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?

Y= 4x + 3 y = - 1 4 x - 5 what is the best description for the lines represented by the equations?

Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee